For issue #2776

Correctly handle large numbers of waypoints

Fix bad connection

Fix vehicle switch crash

Add new FactGroup support

Plumb through initial object mode on Vehicle

Track current mission item while flying

Flash auto-disconnect from vehicle

Fix line to home logic

Default acceptance radius to 0

Add missing mission commands for PX4 and ArduPilot stacks

It is also no longer a user visible field

Change from APM to ArduPilot naming

Fix DO_JUMP id handling

# Conflicts:
#	src/MissionManager/MissionManagerTest.cc

Fix conditions for showing Summary on lost vehicle

Mavlink update

Fix mission command overrides for offline edit

Planned home position support

Also additional major Mission usability changes

Plan: Altitude display should not show non-spatial items

ArduPilot takeoff mission command does not specify coordinate